Conversions were mutating the internal object

pkg/api/v1/conversion.go

@@ -274,15 +274,14 @@ func Convert_api_PodStatusResult_To_v1_PodStatusResult(in *api.PodStatusResult,
 		}
 		out.Annotations[PodInitContainerStatusesAnnotationKey] = string(value)
 	} else {
-		delete(in.Annotations, PodInitContainerStatusesAnnotationKey)
+		delete(out.Annotations, PodInitContainerStatusesAnnotationKey)
 	}
 	return nil
 }
 
 func Convert_v1_PodStatusResult_To_api_PodStatusResult(in *PodStatusResult, out *api.PodStatusResult, s conversion.Scope) error {
 	// TODO: when we move init container to beta, remove these conversions
-	if value := in.Annotations[PodInitContainerStatusesAnnotationKey]; len(value) > 0 {
-		delete(in.Annotations, PodInitContainerStatusesAnnotationKey)
+	if value, ok := in.Annotations[PodInitContainerStatusesAnnotationKey]; ok {
 		var values []ContainerStatus
 		if err := json.Unmarshal([]byte(value), &values); err != nil {
 			return err
@@ -290,7 +289,11 @@ func Convert_v1_PodStatusResult_To_api_PodStatusResult(in *PodStatusResult, out
 		in.Status.InitContainerStatuses = values
 	}
 
-	return autoConvert_v1_PodStatusResult_To_api_PodStatusResult(in, out, s)
+	if err := autoConvert_v1_PodStatusResult_To_api_PodStatusResult(in, out, s); err != nil {
+		return err
+	}
+	delete(out.Annotations, PodInitContainerStatusesAnnotationKey)
+	return nil
 }
 
 func Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(in *api.PodTemplateSpec, out *PodTemplateSpec, s conversion.Scope) error {
@@ -316,8 +319,7 @@ func Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(in *api.PodTemplateSpec,
 
 func Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in *PodTemplateSpec, out *api.PodTemplateSpec, s conversion.Scope) error {
 	// TODO: when we move init container to beta, remove these conversions
-	if value := in.Annotations[PodInitContainersAnnotationKey]; len(value) > 0 {
-		delete(in.Annotations, PodInitContainersAnnotationKey)
+	if value, ok := in.Annotations[PodInitContainersAnnotationKey]; ok {
 		var values []Container
 		if err := json.Unmarshal([]byte(value), &values); err != nil {
 			return err
@@ -325,7 +327,11 @@ func Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in *PodTemplateSpec, out
 		in.Spec.InitContainers = values
 	}
 
-	return autoConvert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in, out, s)
+	if err := autoConvert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in, out, s); err != nil {
+		return err
+	}
+	delete(out.Annotations, PodInitContainersAnnotationKey)
+	return nil
 }
 
 // The following two PodSpec conversions are done here to support ServiceAccount
@@ -533,7 +539,7 @@ func Convert_api_Pod_To_v1_Pod(in *api.Pod, out *Pod, s conversion.Scope) error
 		}
 		out.Annotations[PodInitContainerStatusesAnnotationKey] = string(value)
 	} else {
-		delete(in.Annotations, PodInitContainerStatusesAnnotationKey)
+		delete(out.Annotations, PodInitContainerStatusesAnnotationKey)
 	}
 
 	// We need to reset certain fields for mirror pods from pre-v1.1 kubelet
@@ -552,16 +558,14 @@ func Convert_api_Pod_To_v1_Pod(in *api.Pod, out *Pod, s conversion.Scope) error
 
 func Convert_v1_Pod_To_api_Pod(in *Pod, out *api.Pod, s conversion.Scope) error {
 	// TODO: when we move init container to beta, remove these conversions
-	if value := in.Annotations[PodInitContainersAnnotationKey]; len(value) > 0 {
-		delete(in.Annotations, PodInitContainersAnnotationKey)
+	if value, ok := in.Annotations[PodInitContainersAnnotationKey]; ok {
 		var values []Container
 		if err := json.Unmarshal([]byte(value), &values); err != nil {
 			return err
 		}
 		in.Spec.InitContainers = values
 	}
-	if value := in.Annotations[PodInitContainerStatusesAnnotationKey]; len(value) > 0 {
-		delete(in.Annotations, PodInitContainerStatusesAnnotationKey)
+	if value, ok := in.Annotations[PodInitContainerStatusesAnnotationKey]; ok {
 		var values []ContainerStatus
 		if err := json.Unmarshal([]byte(value), &values); err != nil {
 			return err
@@ -569,7 +573,12 @@ func Convert_v1_Pod_To_api_Pod(in *Pod, out *api.Pod, s conversion.Scope) error
 		in.Status.InitContainerStatuses = values
 	}
 
-	return autoConvert_v1_Pod_To_api_Pod(in, out, s)
+	if err := autoConvert_v1_Pod_To_api_Pod(in, out, s); err != nil {
+		return err
+	}
+	delete(out.Annotations, PodInitContainersAnnotationKey)
+	delete(out.Annotations, PodInitContainerStatusesAnnotationKey)
+	return nil
 }
 
 func Convert_api_ServiceSpec_To_v1_ServiceSpec(in *api.ServiceSpec, out *ServiceSpec, s conversion.Scope) error {